Radiological insights into diverticulitis: Clinical manifestations, complications, and differential diagnosis

Figure 2 Measurement of colonic wall thickness. A: Axial non-contrast computed tomography (CT) image demonstrated right colonic diverticulitis with a distinguishable lumen. The maximum colonic wall thickness was 9 mm (orange line); B: Coronal non-contrast CT image showed sigmoid colonic diverticulitis. Since the lumen was not visualized, the serosa-to-serosa distance was measured at 30 mm (yellow double-sided arrow). Half of this distance was the estimated luminal wall thickness, calculated as 15 mm.